For Cambridge ESOL exams, 50% of the fee will be refunded, provided that a request for the refund is accompanied by a statement from a medical practitioner. This statement should specify the reasons why the candidate was unable to sit the examination. You have to deliver this statement not later than 5 days after the examination.
For IELTS, candidates who request a postponement or cancellation of their test within 5 weeks of the test date will normally be charged the full fee unless they are able to provide evidence that their ability to sit the test has been affected by illness or a serious cause. Evidence must be provided within 5 days following the test date.
All cancellations are subject to an administrative charge of Din 2,000.